View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Growth North Star Metric |  Product Discovery Smoke Test |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | When product teams track many metrics, the view of the actual customer outcome easily gets lost. A North Star Metric bundles growth, usage, and value contribution into one signal that makes the system's direction visible. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-2 h | 1-5 Tage | 1-5 Tage |
Participantsdifferent | 3-8 | Nutzertraffic | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Async |
Outputdifferent | North Star metric, Input metric tree, Measurement cadence | Interest Metrics, Conversion Signal, Learning Note | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | GrowthMetricsAlignmentRetention | ValidationExperimentsDemandGrowth | ValidationExperimentsDemandDiscovery |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
